Sprint Filter
PM121S
Sports Air Filter Ducati Monster S4RS Testastretta Sprint Filter PM121S
Sports Air Filter for Ducati Monster S4RS Testastretta
Sprintfilter PM121S Air Filter
€66.37 €82.96 -20%
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Sprint Filter is a brand founded in 1952, the world's oldest manufacturer of high-performance air filters for motorcycles. Over the decades it has developed its own proprietary technology – the P08 polyurethane foam material with a three-dimensional structure – which sets its products apart from traditional cotton or paper sports filters. The brand's philosophy is focused on real efficiency: greater airflow, more effective engine protection, and long-lasting durability.
Sprint Filter air filters compatible with the bikes in our catalogue can be found in two places: at the bottom of each motorcycle model page, alongside Roadsitalia sports exhausts, or here, in this section, if you are looking for a specific filter by code or want to browse the full range available. Ordering the filter together with the exhaust from the model page has an immediate practical advantage: the products ship together in a single delivery, with no extra costs or waiting times.
The main technical advantage of the P08 material over standard paper filters is its ability to capture very fine particles – down to sizes below 50 microns – thanks to a high-density structure with a large air contact surface. This results in lower flow resistance compared to standard filters, smoother airflow and a more defined intake sound. Long-term protection of internal engine components is another point in its favour: the P08 material is known for its strength and durability, qualities that make it reliable even under intensive use. Unlike disposable filters, the Sprint Filter is washable and reusable: an economic and environmental advantage that eliminates replacement at every service interval.
Installation is straightforward: the filter fits in place of the original with no structural modifications to the bike. ECU remapping is not required in most cases, although when paired with a sports exhaust, a case-by-case evaluation may further optimise engine response. Actual benefits vary depending on the model and overall configuration.
If you are already configuring a new Roadsitalia exhaust, adding the Sprint Filter is the most direct way to work on both sides of engine breathing – intake and exhaust – with a single order and a single shipment. A simple modification, but one that completes the technical picture.
If the filter compatible with your bike is not yet listed in the catalogue, contact us via the dedicated page or via chat to check availability. Updated production times are always visible during checkout, before order confirmation. For any questions, consult the FAQ section or write to us directly.